Unit 2: Lipids

lipids

• have low solubility in water

• high solubility in np solvents

• mostly hydrocarbons

membrane lipids are

amphipathic

types of lipids

what percent of calories should come from fat

20-35%

healthy aspects of fat in diet

• promote satiety

• carry fat-soluble vitamins (like coenzymes)

• major source of fatty acids (omega 3 and omega 6)

• important precursors to eicosanoids (signaling molecules)

lipids are very

diverse molculesc

cells use __% of their genes to synthesize lipids

5%

ubiquinone

lipid important for shuttling in the ETC

sterols

hormones used in cell signaling

lipids are classified by

function

• storage

• membrane

• signaling

• coenzymes

• pigments

• antioxidants

every lipid type

• triacylglycerols

• waxes

• phospholipids

• sphingolipids

• glycolipids

• eicosanoids

• steroids

• lipoproteins

• fat-souble vitamins

• glycerophsopholipids

• sphinegomyelins

• cerebrosides

• gangliosides

• prostaglandins

• thromboxanes

• leokotrienes